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Diagnosis and adjustment of edge water direction in plane heterogeneous reservoir
Author(s): 
Pages: 58-61,66
Year: Issue:  4
Journal: ACTA PETROLEI SINICA

Keyword:  边水驱动物理模型井网储层非均质性示踪剂调剖试验;
Abstract: 冀东油田12#油层是高104-5区块的主力小层,属于河流相沉积,平面非均质性强,边水能量活跃,是该小层的驱动动力.对该层位渗透率等值图进行了分析,抽象出一个实验物理模型.该模型在形状和渗透率分布上基本与地质模型相似,并以充分接触的水线模拟边水,符合地质原型边水驱油实际情况.在两种井网模式下模拟了边水侵入后前缘突进规律.结果表明,渗透率是控制边水侵入的主要因素,边水侵入后沿主河道推进速度最快.井网部署方式与储层非均质性有一定的适应性,合理的井位能抑制边水突进.示踪剂监测解释结果表明,在主河道西部,边水自西北向东侵入;主河道东部边水自东北向西南入侵,与主河道砂体展布方向一致.实验模拟结果与示踪剂监测结果吻合.根据研究结果在现场实施边水调剖措施,取得了很好的效果.
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